'Observatory RigoRigo'  Built next to my home. 
3x3 meter. built summer 2007, working days about 3 weeks.  

The homemade   EQ6PRO "wood" Top 

Ø 22cm.   5 x 22mm plywood + littel  plywood on top + 12mm bolts & nuts = IT WORK perfekt :-)

and cost "nothing" and take 2-3 hours of work...